OT-2026-000021938
Publication integrity record
Three pad foam vacuum gripper, three outlet manifold, pump fed, sustained blow-off before set-down, on a tool changer
This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000021938) never changes.
Identity and time
| Publication number | OT-2026-000021938 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb5b-7f77-b749-9c7617d4bcb5 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021938 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5d9de538cb63f552ac3fad8352a9dd0844edc525f078c223af8bc0d11ec7668a |
|---|---|
| Markdown | 5eabf42fc7446b4993b52770990bdec5e235874668631b212eb1186101a6c8ba |
| Publication page | c1da3d1d03572548bcfecbe90ccdc47a9ad8d09c9e66c79b2cf26a86b4a4fc59 |
| Manifest | db7f83ec78b2816f6f2352e6ecf621f29db3976ca5b3c0ede589ef9d3d91b1e6 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | qpIVu+/cZVUH3M7edrbhE0s2VFk8zHZ0DD5vHDTrDHB4a2HVnVniYwovM6IGSLYjOhh5gBmojjeaPH2wHw2SDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-10-02T04:42:07.295540Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938observed c1da3d1d03572548bcfecbe90ccdc47a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-02T04:42:07.236688Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938/manifest.jsonobserved db7f83ec78b2816f6f2352e6ecf621f2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T04:42:07.170500Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938/publication.mdobserved 5eabf42fc7446b4993b52770990bdec5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T04:42:07.033498Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938/publication.txtobserved 5d9de538cb63f552ac3fad8352a9dd08...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:41:19.520954Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938observed c1da3d1d03572548bcfecbe90ccdc47a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:41:19.440614Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938/manifest.jsonobserved db7f83ec78b2816f6f2352e6ecf621f2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:41:19.343911Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938/publication.mdobserved 5eabf42fc7446b4993b52770990bdec5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:41:19.230124Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021938/publication.txtobserved 5d9de538cb63f552ac3fad8352a9dd08...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.
Independent archive
| External archive | Pending Canonical URLs are submitted to an independent archive in batches. |
|---|
A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.
Third-party custody
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|